Improvement in bottle-stoppers



F. KUTSGHER.

Bottle-Stoppers.

No. 136,326. Patentedfwzmms.

FREDERICK KUTSCHER, OF NEW HAVEN, CONNECTICUT.

IMPROVEMENT IN BOTTLE-STO'PPERS.

Specification forming part of Letters Patent No. 136,326, dated February25, 1873.

To all vwhom it may concern:

Beit known that I, FREDERICK KUrscHER, of New Haven, in the county ofNew Haven and State of Connecticut, have invented a new Improvement inBottle- Stopper; and I do hereby declare the following,when' taken inconnection with the accompany-ing drawing and the letters of referencemarked thereon, to be a full, clear, .and exact description of` thesame, and which said drawing constitutes part of this specification, andrepresents, in

Figure l, a side view; 2, a vertical central section of the neck of abottle with the stopper applied; Fig. 3, a vertical section of the plug;and in Fig. 4, a vertical section of the same as applied to thecoveringplate.

This invention relates to an improvement in the bottle-stopper for whichLetters Patent were granted to me June 15,1869; the object being, first,to avoid the necessity of a` rivet passingthrough the plug; and, second,to insure the more perfect closing of the neck ofthe bottle. Theinvention consists, first, in constructing the stopper' with a centralupward projection to extend through the covering-plate, and there beexpanded by inserting into the recess of the said projection a ball orits equivalent; second, in constructing the plug of a dome shape uponits upper surface,

' so that the conical portion of the plate-bearing, a-t or near thecenter of thel plug, will have a greater expanding power than a flatsurface, as in my former patent; third, in making theunder surface ofthe plug concave, whereby the lower edge is allowed to expand to ll theneck.

A is the neck of the bottle; B, the covering-plate, the under side ofwhich ismade conical, preferably, by depressing from the upper sidedown. A perforation through the center of this cone is formed forsecuring the plug. The plate B is hinged to the bottle by. a link, C,and a loop, D, in substantially the same manner as in my former patent.The plug E is made from India rubber or similar lelastic material, andis`formed with a pro'ection, F, uponkthc upper side to passtllrougli theperforation in the center of the plate B; and this projection has acavity in the center, and, when passed through the plate, afball, G, orits equivalent, is inserted into the said cavity, causing the expansionof the said projection, as seen in Fig. 4, so as to prevent theremovalof the plug from the plate.

If the upper surface of the plug be made dat, as in my former patent,the edge of the plug strikes the plate so soon after the compressionpfthe. plug commences that it is difiicult to attain the desired degree ofexpansion. To overcome this difficulty I make the ripper surface oftheplug convex, as seen in 1igs. 3 and 4; hence, when the compression takesplace the edge is the last portion of the surface to strike the plate,and the expansion will continue until the edge comes in contact with theplate.

In my former patent the under surface of the plug was necessarily flat;hence the compressing of the plug into the neck of the bottle could notexpandthe lower edge. To overcome this difculty and allow the lower endof the plug to perfectly lill the neck I form the lower surface concave,as seen in Figs. 3 and 4; and in compressing from the top the lower edgewill expand until the surface becomes perfectly flat, and thuscompletely fill the neck of the bottle, as seen in Fig. 2.

l. In combination with the plate B, the plug E, constructed with theprojection F to extend through the plate, and with a cavity in the saidprojection filled to expand the said projection,\substantially asdescribed.

2. The plug E, constructed of a convex form upon its upper surface,combined with the plate B, having a downward conical projection,substantially as and for the purposespecified.

3. In combination with the plate B, construct ed with a downward conicalprojection, the plug E, constructed with a concavity upon its. lowersurface, substantially as and for the purpose set forth.

Witnesses: F. IIUTSCHER.

A. J. Trnnrrs, J; H. Snurrwnr,

